@article{1230395345,
author = {MATSUMOTO, Yukio},
title = {Torus fibrations over the $2$ -sphere with the simplest singular fibers},
journal = {J. Math. Soc. Japan},
volume = {37},
number = {4},
year = {1985},
pages = { 605-636},
language = {en},
url = {http://dml.mathdoc.fr/item/1230395345}
}
MATSUMOTO, Yukio. Torus fibrations over the $2$ -sphere with the simplest singular fibers. J. Math. Soc. Japan, Tome 37 (1985) no. 4, pp. 605-636. http://gdmltest.u-ga.fr/item/1230395345/